Rifle receiver



FIG. 1 is a left side perspective view of the rifle receiver.

FIG. 2 is a right side perspective view of the rifle receiver.

FIG. 3 is a front end view of the rifle receiver.

FIG. 4 is a back end view of the rifle receiver.

FIG. 5 is a left side view of the rifle receiver.

FIG. 6 is a right side view of the rifle receiver.

FIG. 7 is a top view of the rifle receiver; and,

FIG. 8 is a bottom view of the rifle receiver.

The broken line showing of aspects of the rifle receiver forms no part of the claimed design. 

CLAIM The ornamental design for a rifle receiver, as shown and described. 